/*
This file is part of libmicrohttpd
Copyright (C) 2007, 2013 Christian Grothoff (and other contributing authors)
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* @file benchmark.c
* @brief minimal code to benchmark MHD GET performance
* @author Christian Grothoff
*/
#include "platform.h"
#include <microhttpd.h>
#if defined(CPU_COUNT) && (CPU_COUNT+0) < 2
#undef CPU_COUNT
#endif
#if !defined(CPU_COUNT)
#define CPU_COUNT 2
#endif
#define PAGE "<html><head><title>libmicrohttpd demo</title></head><body>libmicrohttpd demo</body></html>"
#define SMALL (1024 * 128)
/**
* Number of threads to run in the thread pool. Should (roughly) match
* the number of cores on your system.
*/
#define NUMBER_OF_THREADS CPU_COUNT
static unsigned int small_deltas[SMALL];
static struct MHD_Response *response;
/**
* Signature of the callback used by MHD to notify the
* application about completed requests.
*
* @param cls client-defined closure
* @param connection connection handle
* @param con_cls value as set by the last call to
* the MHD_AccessHandlerCallback
* @param toe reason for request termination
* @see MHD_OPTION_NOTIFY_COMPLETED
*/
static void
completed_callback (void *cls,
struct MHD_Connection *connection,
void **con_cls,
enum MHD_RequestTerminationCode toe)
{
struct timeval *tv = *con_cls;
struct timeval tve;
uint64_t delta;
(void)cls; /* Unused. Silent compiler warning. */
(void)connection; /* Unused. Silent compiler warning. */
(void)toe; /* Unused. Silent compiler warning. */
if (NULL == tv)
return;
gettimeofday (&tve, NULL);
delta = 0;
if (tve.tv_usec >= tv->tv_usec)
delta += (tve.tv_sec - tv->tv_sec) * 1000000LL
+ (tve.tv_usec - tv->tv_usec);
else
delta += (tve.tv_sec - tv->tv_sec) * 1000000LL
- tv->tv_usec + tve.tv_usec;
if (delta < SMALL)
small_deltas[delta]++;
else
fprintf (stdout, "D: %llu 1\n", (unsigned long long) delta);
free (tv);
}
static void *
uri_logger_cb (void *cls,
const char *uri)
{
struct timeval *tv = malloc (sizeof (struct timeval));
(void)cls; /* Unused. Silent compiler warning. */
(void)uri; /* Unused. Silent compiler warning. */
if (NULL != tv)
gettimeofday (tv, NULL);
return tv;
}
static int
ahc_echo (void *cls,
struct MHD_Connection *connection,
const char *url,
const char *method,
const char *version,
const char *upload_data, size_t *upload_data_size, void **ptr)
{
(void)cls; /* Unused. Silent compiler warning. */
(void)url; /* Unused. Silent compiler warning. */
(void)version; /* Unused. Silent compiler warning. */
(void)upload_data; /* Unused. Silent compiler warning. */
(void)upload_data_size; /* Unused. Silent compiler warning. */
(void)ptr; /* Unused. Silent compiler warning. */
if (0 != strcmp (method, "GET"))
return MHD_NO; /* unexpected method */
return MHD_queue_response (connection, MHD_HTTP_OK, response);
}
int
main (int argc, char *const *argv)
{
struct MHD_Daemon *d;
unsigned int i;
if (argc != 2)
{
printf ("%s PORT\n", argv[0]);
return 1;
}
response = MHD_create_response_from_buffer (strlen (PAGE),
(void *) PAGE,
MHD_RESPMEM_PERSISTENT);
#if 0
(void) MHD_add_response_header (response,
MHD_HTTP_HEADER_CONNECTION,
"close");
#endif
d = MHD_start_daemon (MHD_USE_INTERNAL_POLLING_THREAD | MHD_USE_SUPPRESS_DATE_NO_CLOCK
#ifdef EPOLL_SUPPORT
| MHD_USE_EPOLL | MHD_USE_TURBO
#endif
,
atoi (argv[1]),
NULL, NULL, &ahc_echo, NULL,
MHD_OPTION_CONNECTION_TIMEOUT, (unsigned int) 120,
MHD_OPTION_THREAD_POOL_SIZE, (unsigned int) NUMBER_OF_THREADS,
MHD_OPTION_URI_LOG_CALLBACK, &uri_logger_cb, NULL,
MHD_OPTION_NOTIFY_COMPLETED, &completed_callback, NULL,
MHD_OPTION_CONNECTION_LIMIT, (unsigned int) 1000,
MHD_OPTION_END);
if (d == NULL)
return 1;
(void) getc (stdin);
MHD_stop_daemon (d);
MHD_destroy_response (response);
for (i=0;i<SMALL;i++)
if (0 != small_deltas[i])
fprintf (stdout, "D: %d %u\n", i, small_deltas[i]);
return 0;
}